CN204220021U - A kind of ore sintering flue gas purification system - Google Patents

A kind of ore sintering flue gas purification system Download PDF

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Publication number
CN204220021U
CN204220021U CN201420709104.5U CN201420709104U CN204220021U CN 204220021 U CN204220021 U CN 204220021U CN 201420709104 U CN201420709104 U CN 201420709104U CN 204220021 U CN204220021 U CN 204220021U
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Prior art keywords
flue gas
pipeline
exchange unit
sack cleaner
mouth
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CN201420709104.5U
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Chinese (zh)
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徐海东
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SHANDONG SUNYON IRON ALLOY Co Ltd
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SHANDONG SUNYON IRON ALLOY Co Ltd
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Abstract

The utility model discloses a kind of ore sintering flue gas purification system, mainly comprise air-suction cover, flue gas heat-exchange unit, sack cleaner, flue gas desulfurization and denitrification device, described air-suction cover connects centrifugal blower by pipeline, and centrifugal blower connects flue gas heat-exchange unit by pipeline; Described flue gas heat-exchange unit connects sack cleaner by pipeline; Described sack cleaner side is provided with flue gas desulfurization and denitrification device, the out of stock device of described flue gas desulfurization mainly comprises into mouth, outlet flue, shower, packing layer, housing, described enter mouth and outlet flue oral area be respectively equipped with flange, described housing upper is provided with limewash import, lower housing portion is provided with sewage draining exit, enclosure interior is provided with some packing layers, described packing layer is made up of some corrosion-resistant silk screens, described inner walls is uniformly distributed and is provided with some showers, and described shower is provided with some mouth sprays; Described flue gas desulfurization and denitrification device side is provided with air-introduced machine.The utility model structure is simple, and technological process is reasonable, reduces production cost.

Description

A kind of ore sintering flue gas purification system
Technical field
The utility model belongs to ore metallurgical technology field, particularly a kind of ore sintering flue gas purification system.
Background technology
Ore sintering process is the complicated physical and chemical process under a high-temp combustion condition, be drawn into the fuel generation combustion reaction in the air of the bed of material and compound, the heat of burning release ensures the carrying out of sintering physical and chemical process, and the flue gas of burning is as toxic emission; Sintering machine operating rate is high, smoke discharge amount is large, smoke components is complicated, flue gas oxygen content is high, and corrosive gas is large, and the change according to batching exists polytropy, flue-gas temperature amplitude is large, smoke moisture is large, due to the relation of sulfur-bearing rate in sintering feed, causes the concentration of SO2 in fume emission to change with the change of charge ratio; For existing sintering gas purifying, floor space is large, investment and operating cost high, the energy-saving and emission-reduction of steel industry, become an inevitable problem.
Summary of the invention
The purpose of this utility model overcomes deficiency in prior art, and provide a kind of ore sintering flue gas purification system, can realize technological process reasonable, floor space is little, reduces production cost.
To achieve these goals, the technical solution adopted in the utility model is:
A kind of ore sintering flue gas purification system, mainly comprises air-suction cover, flue gas heat-exchange unit, sack cleaner, flue gas desulfurization and denitrification device; Described air-suction cover connects centrifugal blower by pipeline, and sintering device flue gas is collected by air-suction cover; Centrifugal blower connects flue gas heat-exchange unit by pipeline, described flue gas heat-exchange unit mainly comprises insulating tube, heat pipe, described insulating tube top is provided with into mouth, insulating tube bottom is provided with outlet flue, described heat pipe oral area is provided with water inlet and delivery port, water inlet and delivery port oral area are respectively equipped with flange, described delivery port connects centrifugal water pump by pipeline, centrifugal water pump makes Inlet and outlet water form a water circulation, high-temperature flue gas enters flue gas heat-exchange unit from entering mouth, through water heat absorption, low-temperature flue gas is discharged from outlet flue;
Described flue gas heat-exchange unit connects sack cleaner by pipeline, described sack cleaner box house is provided with some filter bags, and filter bag top is provided with blowback blow gun, and sack cleaner bottom is provided with discharging opening, described sack cleaner side is provided with flue gas desulfurization and denitrification device, and the two is connected by pipeline;
The out of stock device of described flue gas desulfurization mainly comprises into mouth, outlet flue, shower, packing layer, housing, described enter mouth and outlet flue oral area be respectively equipped with flange, described housing upper is provided with limewash import, lower housing portion is provided with sewage draining exit, enclosure interior is provided with some packing layers, described packing layer is made up of some corrosion-resistant silk screens, described inner walls is uniformly distributed and is provided with some showers, described shower is provided with some mouth sprays, described shower realizes 360 ° of comprehensive sprays, and packing layer fully and smoke reaction; Described flue gas desulfurization and denitrification device side is provided with air-introduced machine, and the two is connected by pipeline, air-introduced machine by fume emission to air.
Preferably, described flue gas desulfurization and denitrification device side is provided with sedimentation basin, and in flue gas desulfurization and denitrification device, sewage draining exit connects sedimentation basin by pipeline, be provided with dredge pump below sedimentation basin, sedimentation basin supernatant, extract out with centrifugal water pump and be used for lime slurrying, lime paste is discharged by dredge pump, recycles.
The utility model compared with prior art beneficial effect shows: 1) described inner walls is uniformly distributed and is provided with some showers, and described shower is provided with some mouth sprays, and spraying effect is good, and neutralization reaction is abundant, and the out of stock rate of desulfurization is high; Adopt lime slurrying, reduce production cost; 2) byproduct such as dust, tar that sack cleaner is collected can be recycled, and does not cause secondary pollution to environment; 3) technological process is reasonable, and floor space is little, and design feature is distinct, in the life-span of extension device, reduces maintenance workload.
Accompanying drawing explanation
Accompanying drawing 1 is a kind of ore sintering flue gas purification system of the utility model Structure and Process schematic diagram;
Accompanying drawing 2 is flue gas heat-exchange unit structural representations in a kind of ore sintering flue gas purification system of the utility model;
Accompanying drawing 3 is flue gas desulfurization and denitrification apparatus structure schematic diagrames in a kind of ore sintering flue gas purification system of the utility model;
Accompanying drawing 4 is flue gas desulfurization and denitrification device packing layer structural representations in a kind of ore sintering flue gas purification system of the utility model;
11-air-suction cover in figure, 12-flue gas heat-exchange unit, 13-sack cleaner, 14-flue gas desulfurization and denitrification device, 15-air-introduced machine, 16-centrifugal blower, 17-centrifugal water pump, 18-sedimentation basin, 101-flange, 102-water inlet, 103-delivery port, 104-enters mouth, 105-outlet flue, 106-insulating tube, 107-heat pipe, the import of 201-limewash, 202-sewage draining exit, 203-packing layer, 204-shower, 205-mouth spray, 206-housing.
Detailed description of the invention
For convenience of the understanding of the art personnel, below in conjunction with accompanying drawing 1-4, the technical solution of the utility model is illustrated further.
A kind of ore sintering flue gas purification system, mainly comprises air-suction cover 11, flue gas heat-exchange unit 12, sack cleaner 13, flue gas desulfurization and denitrification device 14, and described air-suction cover 11 connects centrifugal blower 16 by pipeline, and sintering device flue gas is collected by air-suction cover 11; Centrifugal blower 16 connects flue gas heat-exchange unit 12 by pipeline.
Described flue gas heat-exchange unit 12 mainly comprises insulating tube 106, heat pipe 107, described insulating tube 106 top is provided with into mouth 104, insulating tube 106 bottom is provided with outlet flue 105, described heat pipe 107 oral area is provided with water inlet 103 and delivery port 104, water inlet 103 and delivery port 104 oral area are respectively equipped with flange 101, described delivery port 104 connects centrifugal water pump 17 by pipeline, and centrifugal water pump 17 makes Inlet and outlet water form a water circulation, and described flue gas heat-exchange unit 12 connects sack cleaner 13 by pipeline.
Described sack cleaner 13 box house is provided with some filter bags, and filter bag top is provided with blowback blow gun, and sack cleaner bottom is provided with discharging opening, and described sack cleaner 13 side is provided with flue gas desulfurization and denitrification device 14, and the two is connected by pipeline.
The out of stock device 14 of described flue gas desulfurization mainly comprises into mouth 104, outlet flue 105, shower 204, packing layer 203, housing 206, described enter mouth 104 and outlet flue 105 oral area be respectively equipped with flange 101, described shell 206 body top is provided with limewash import 201, housing 206 bottom is provided with sewage draining exit 202, housing 206 inside is provided with some packing layers 203, described packing layer 203 is made up of some corrosion-resistant silk screens, described housing 206 inwall is uniformly distributed and is provided with some showers 204, described shower 204 is provided with some mouth sprays 205, described shower 204 realizes 360 ° of comprehensive sprays, packing layer 203 fully and smoke reaction, described flue gas desulfurization and denitrification device 14 side is provided with air-introduced machine 15, and the two is connected by pipeline.
Described flue gas desulfurization and denitrification device 14 side is provided with sedimentation basin 18, and in flue gas desulfurization and denitrification device, sewage draining exit 202 connects sedimentation basin 18 by pipeline, is provided with dredge pump below sedimentation basin 18, sedimentation basin supernatant, extract out with centrifugal water pump and be used for lime slurrying, lime paste is discharged by dredge pump, recycles.
Native system workflow is as follows: air-suction cover absorbs sintering device flue gas, flue gas is pressed into flue gas heat-exchange unit and carries out heat exchange by centrifugal blower, high-temperature flue gas becomes low-temperature flue gas, enter sack cleaner after heat exchange completes and carry out dedusting, the out of stock device of flue gas desulfurization is entered after dedusting completes, desulfurization is out of stock complete after, flue gas is disposed to outside air by air-introduced machine.
Above content is only to structure example of the present utility model and explanation; affiliated those skilled in the art make various amendment to described specific embodiment or supplement or adopt similar mode to substitute; only otherwise depart from the structure of utility model or surmount this scope as defined in the claims, protection domain of the present utility model all should be belonged to.

Claims (2)

1. an ore sintering flue gas purification system, mainly comprises air-suction cover, flue gas heat-exchange unit, sack cleaner, flue gas desulfurization and denitrification device; It is characterized in that described air-suction cover connects centrifugal blower by pipeline, centrifugal blower connects flue gas heat-exchange unit by pipeline, described flue gas heat-exchange unit mainly comprises insulating tube, heat pipe, described insulating tube top is provided with into mouth, insulating tube bottom is provided with outlet flue, described heat pipe oral area is provided with water inlet and delivery port, water inlet and delivery port oral area are respectively equipped with flange, described delivery port connects centrifugal water pump by pipeline, centrifugal water pump makes Inlet and outlet water form a water circulation, high-temperature flue gas enters flue gas heat-exchange unit from entering mouth, and low-temperature flue gas is discharged from outlet flue;
Described flue gas heat-exchange unit connects sack cleaner by pipeline, described sack cleaner box house is provided with some filter bags, and filter bag top is provided with blowback blow gun, and sack cleaner bottom is provided with discharging opening, described sack cleaner side is provided with flue gas desulfurization and denitrification device, and the two is connected by pipeline;
The out of stock device of described flue gas desulfurization mainly comprises into mouth, outlet flue, shower, packing layer, housing, described enter mouth and outlet flue oral area be respectively equipped with flange, described housing upper is provided with limewash import, lower housing portion is provided with sewage draining exit, enclosure interior is provided with some packing layers, described packing layer is made up of some corrosion-resistant silk screens, and described inner walls is uniformly distributed and is provided with some showers, and described shower is provided with some mouth sprays; Described flue gas desulfurization and denitrification device side is provided with air-introduced machine, and the two is connected by pipeline.
2. a kind of ore sintering flue gas purification system according to claim 1, it is characterized in that described flue gas desulfurization and denitrification device side is provided with sedimentation basin, in flue gas desulfurization and denitrification device, sewage draining exit connects sedimentation basin by pipeline, is provided with dredge pump below sedimentation basin.
CN201420709104.5U 2014-11-22 2014-11-22 A kind of ore sintering flue gas purification system Active CN204220021U (en)

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CN204220021U true CN204220021U (en) 2015-03-25

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106552493A (en) * 2015-09-24 2017-04-05 新汶矿业集团有限责任公司翟镇煤矿 Down-hole abatement of noxious gases method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106552493A (en) * 2015-09-24 2017-04-05 新汶矿业集团有限责任公司翟镇煤矿 Down-hole abatement of noxious gases method

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